The Sand Cruiser is a takeout food store at a popular beachside resort. Teresa Texton, owner of the Sand Cruiser, was dec how much refrigerator space to devote to four different beverages. Appropriate data on the four beverages follow: Sales price per case Variable cost per case Cases sold per foot of shelf space per day Limeade $21.60 16.20 30 Lemonade $23.00 18.20 28 Ginger Ale Grape Juice $21.60 $46.10 16.10 36.20 5 6 The contribution margin per case for Lemonade is